DōbutsuLoid

DobutsuLoid is a fanmade, unofficial spin-off of the Vocaloids. Dobutsu means "Animals" in Japanese. Each of the DobutsuLoids are a person with some animal's ears and tail.

DōbutsuLoid on Fanloid Wiki

 * Nighto. - Cat version of Kaito.
 * Yagiuo- Goat version of Hatsune Mikuo.

Trivia

 * Here